Paper-cutter.



PATENTBD DEC. 31, 1907.

U. L. SMITH.

PAPER CUTTER. APPLICATION FILED JULY 2. 1907 4 SHEETS-SHEET 1.

INVENTOR c arZerlfv m'ffi ATTORNEY THE NORRIS PETERS co, wAsl-uumwv, ncy No. 875,630. PATENTED DEC. 31, 1907.

' 0. L. SMITH.

.PAPER CUTTER.

APPLICATION FILED JULY 2. 1907.

' 4 SHEET$SH EET 2.

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PATENTED DEC. 31, 1907. 0. L. SMITH.

PAPER CUTTER.

APPLICATION FILED JULY 2, 1907.

4 SHEETS-SEEET 3.

INVE TOR CZar-imlfi u'fi [WW/C1 ATTQRNEY WITNESSES! v riu: NORRIS PETERScm, WASHINGTON, n. c.

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PATENTED DEC. 31, 1907.

0. L. SMITH.

PAPER CUTTER.

APPLIO'ATION FILED JULY 2, 1907.

' 4-SHEETS-SHEEI 4,

INVENTOR ATTORNEY n1: mamas PETERS cc, wA'sHmcro/v, 1:. c4

, UNITD %TA.TE PATENT i? FFICE.

CHARLES L. SMITH, OF NEW YORK, N. Y., ASSIGNOR TO GULLBERG AND SMITH, OFNEW YORK,

N. Y., A PARTNERSHIP.

PAPER-CUTTER.

Patented Dec. 31, 1907.

Application filed July 2, 1907. Serial No. 381,848.

To all whom it may concern:

Be it known that I, CHARLES L. SMITH, a citizen of the United States,residing at New York, in the county of New York and State of New York,have invented new and useful Improvements in Paper-Cutters, of which thefollowing is a specification.

This invention resides in certain details of construction.

The object of the invention is to provide a simple, efficient and cheapstructure.

This invention is set forth in the following specification and claimsand illustrated in the annexed drawing, in which:

Figure 1 is a front elevation of a machine embodying this invention.Fig. 2 is a side elevation of Fig. 1. Fig. 3 is a sectional elevationalong line as a Fig. 1. Fig. 4 is a view from the opposite side to thatexposed in Fig. 2. Fig. 5 is a sectional view of the clutch.

In this drawing is shown a frame a with driving shaft 1) having theusual fast and loose pulleys c. Shaft 7) has a gear (1 engaging gear 6on shaft f which by gear 9 drives gear 7L and shaft "L. Shaft i carriescranks or eccentric pins it to which are jointed or pivoted links mpivoted at their upper ends to link pieces a which by pivots o arejointed to heads p of the blade or cutter The cutter head is hung by alink 1" or suspended from a cross head of the fixed frame a so as todescend on an incline or give a draw cut action to the blade 9 as usual.The shaft f also has a gear .9 engaging gear t on a shaft 2. This gear25 actuates a crank pin 3 which connects by links 4 with a cap piece orcover plate 5 of a clutch box 6. The plate or cover disk 5 is screwedtight onto box 6 in which box is a plate 7 having perforations forseating plugs 8 of wood or the like. This plate 7 can be of any desiredshape so long as it serves as a carrier for plugs or friction pieces 8.

The plate 7 is keyed to a shaft 9. The clutch 5 and 6 is loose on suchshaft. The plate or cover 5 being drawn by the fastening screws tight tobox 6 will clamp or compress the blocks 8 of the friction disk orcarrier 7. The plate 5 and box 6 are thus united to be practically onepiece and the link 4 on the rotation of the crank pin 3 oscillates thebox 5 and 6 back and forth. The grip or friction of the clutch on theblock or friction plate 7 or its blocks 8 causes the oscillation of theclutch to be imparted to plate 7 and to the shaft 9 to which plate 7 iskeyed. The rocking movement of shaft 9 is imparted to arms 10 keyed tosaid shaft 9. To the free ends of arms 10' are pivoted links 11 engagingthe pivots 12 of toggle arms 13. One arm or one pair of arms 13 of thetoggle oints swing on a fixed point or shaft 14 and the lower armsengage a bar 15 which can move up and down in vertical slots or guidesin the frame. As the arm 10 rocks the toggle joints 13 are flexed orextended to cause bar 15 with the links 16 to reciprocate and move theclamp 17 to and from the table 18.

The operation is readily explained. The shaft b by the gearing mentionedrotates shaft 6 with crank pin 7c so as to reciprocate the cutter q. Theshaft 1) also by means of shaft f and gearing s t rotates crank 3 and bylinks 4 oscillates the clutch 5 and 6 to cause the toggles to press theclamp bar 17 to the work. When the work is compressed so that the clampcan not descend further the clutch 5 if not at the end of its strokewill slip idly over plate 7 The toggle arrangement has been found tomultiply or increase the pressure or efficiency so that the energyexerted on the link 11 is increased by the toggles 13 to give a morepowerful pressure or result at the clamp 17.

Now what I claim is:

1. In a paper cutting apparatus a blade with a rotary shaft and crankconnections for actuating the blade, gears actuated by the rotary shaft,reciprocating arms actuated by the gears, a toggle actuated by the arms,and a clamp actuated by the toggle.

2. In a paper cutting apparatus a blade with actuating means, a clamp, atoggle for actuating the clamp, a rock shaft for actuating the toggle, afriction device on the shaft, and a rotary shaft linked to the frictiondevice.

3. In a paper cutting apparatus a blade, a shaft with an eccentric andlinks for actuating the blade, a second shaft having gear connectionswith the shaft of the eccentric, a

friction device and a rock shaft oscillated by i In testimony whereof Ihave hereunto set the second shaft, a toggle joint actuated by my handin the presence of two subscribing the rock shaft and a clamp actuatedby the witnesses.

toggle joint, the friction device forming a CHARLES L. SMITH. 5 slipconnection on the rock shaft to allow Witnesses:

motion to the cutter when the clamp is ar- CHRISTIAN ALMSTAEDT,

rested. EDWARD WIEsNER.

